The core design feature of Cleaver Blades is their “cutting-edge” narrow tip profile.Compared to the rounded tips of standard three-blade propellers,this design significantly reduces “water vortex formation” during high-speed rotation— — As propeller RPM increases (particularly when paired with mid-to-high horsepower engines like Honda 35-60HP),the cutting blades reduce hydraulic drag,allowing engine power to be more directly converted into propulsion.

In practical use,when paired with the appropriate pitch size on Honda 35-60HP models,high-speed cruising speeds can be increased by 3-5 km/h compared to standard 3-blade propellers.The efficiency advantage becomes more pronounced at higher RPMs,making it particularly suitable for scenarios prioritizing “rapid cruising” (such as leisure speedboats and coastal sightseeing vessels).

The “narrow-edge structure” of the cutting-type blades ensures strength while being 5%-8% lighter than standard 3-blade propellers of the same size (assuming both are made of aluminum alloy).This reduces load on the engine's drive shaft during rotation,minimizing long-term wear on engine bearings and gears to indirectly extend engine lifespan.Additionally,the lightweight design reduces fuel consumption during idle operation and enhances fuel efficiency during routine cruising,making it particularly suitable for boat owners requiring frequent use (e.g.,fishing vessels,commercial workboats).

Engine Application:

3.25" Gearcase BF 35 1991-94
BF 40 HP 1995 &; Newer
BF 40A All Years
BF 45 1991-94
BF 50 1995 &; Newer
50A All Years
BF 60 2010 &; Newer
BF 60A All Years